US2498084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interpolymers of fumaric esters and a chlorinated alkene
Assignee: Uniroyal Inc
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Filing: 1946-04-19
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Granted: 1950-02-21
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Expires: 1966-04-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Jerome G Kuderna
- 👤 Robert H Snyder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:27
CPC Classifications
C; C08; C08F; C08F22/00; C08F22/10; C08F22/26; C08F22/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A SOLUBLE UNSATURED BINARY COPOLYMER OF A DI-2-ALKENYL FUMARATE SELECTED FROM THE CLASS CONSISTING OF DIALLYL FUMARATE, DIMETHALLYL FUMARATE, AND DI(2-CHLOROALLY) FUMARATE AND A CHLORINATED-ALKENE HAVING FROM THREE TO FOUR CARBON ATOMS PREPARED FROM A MIX IN WHICH THE SAID ALKENE RANGES FROM 10-500% BY WEIGHT BASED ON THE WEIGHT OF THE FUMRATE.
Claim 2
Dependent Claim
53 words
A SOLUBLE UNSATURED BINARY COPOLYMER OF A DI-2-ALKENYL FUMARATE SELECTED FROM THE CLASS CONSISTING OF DIALLYL FUMARATE, DIMETHALLYL FUMARATE, AND DI(2-CHLOROALLY) FUMARATE AND A CHLORINATED-ALKENE HAVING FROM THREE TO FOUR CARBON ATOMS PREPARED FROM A MIX IN WHICH THE SAID ALKENE RANGES FROM 10-500% BY WEIGHT BASED ON THE WEIGHT OF THE FUMRATE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |